Histologic study of furcation perforations treated with MTA or Super EBA in dogs’ teeth

By Yildirim T, Gençoğlu N, Firat I, Perk C, Guzel O

Date: 10/2005
Journal: Oral Surg Oral Med Oral Patho

Summary:  

Purpose:

To compare histologic tissue responses to Super EBA and MTA used to repair experimentally induced furcal perforations in dogs’ teeth

Materials and Methods:

 – n: 90 teeth (mandibular Ms and Pms) of 9 adult Mongrel dogs. Teeth were divided in to 3 groups Gp.1 Super EBA n:36 teeth, Gp.2 MTA n:36, and Gp.3 a – ve control gp n:18 teeth.

–     After GA, teeth were RCT with GP and Grossman’s sealer by lateral condensation . -1 week after, a perforation was made into the chamber floor with round bur #104. -Each side of the mandible was treated either by MTA or Super EBA. Teeth were restored with Amalgam. -Mandibles were sectioned, fixed, demineralized, sectioned, and stained with H&E. -Sections were viewed by 2 examiners type of healing was scored (0 absent, 1 mild, 2 moderate, 3 severe) and divided to s.t healing and hard tissue healing in 3 time points 1 month, 3months, and 6 months.

Most highlighted results:

-Results shown in Fig.1 and Table.1.

-MTA gp showed mild inflammation in 1 month and decreased in 3 months and no inflammation was seen in 6 months, all specimens at 6 months showed new cementum.

-Super EBA gp showed moderate inflammation in 1 month and decreased in 3 months and unchanged in 6 months but ranged from mild to severe, specimens only showed irregular C.T.

Clinical Significance:

MTA is superior to Super EBA for the repair of furcation perforations.